This bi-fold door restrictor is available in both 335mm and 500mm long and fits in the outer frame roller channel which is 19mm deep. 


It is "hold-open" and by moving the restrictor laterally in the channel, many angles of opening and "holding" are achievable (from under 90 degrees up to 130 degrees). 


  • Friction can be adjusted by means of a "Phillips" screw. 
  • All materials used are durable and non-corrosive. 
  • Restrictors are available in 430 Stainless Steel as standard.

Bi-Fold Door Restrictor 500mm